LineSource seems to be used in release builds

[hiratasa]

From proconio 0.5.0, it looks like LineSource is used even in release builds when no source is specified in the input! macro.

Notes

This does not happen in 0.4.5, but it does happen in 0.5.0. I tried specifying a particular revision in Cargo.toml, and it seems to start from this commit: b996460

[statiolake]

Thanks for reporting! You are correct, the commit was not a correct refactoring... I'm so sorry.

[statiolake]

I'll fix this later. That said, I think it might be better to keep input! as-is and create a separate macro like input_once! for faster input instead.
Which should we focus on: faster input or interactive problems?
Given that Rust is one of the fastest languages, implementing the expected solution rarely requires these kinds of non-essential constant factor improvements. On the other hand, we're seeing more and more interactive problems, especially in AHC.
So maybe we should focus on interactive problems first? Still thinking about it though.

[hiratasa]

Thanks for the quick response!

I only reported it because I happened to notice the change. To be honest, I don’t personally need this performance improvement that much. So I’m fine with whatever the default behavior is. The idea you suggested (keep the current behavior and add input_once!) sounds good to me.